Stablecoins · Ethereum mainnet

USDT alerts: every Tether mint, burn and freeze

Tether is the only one who can mint, burn or freeze USDT, and each of those is a public event on its contract. See what the USDT contract logs, open a ready-made rule, and get an alert within seconds of confirmation.

Set up this alert See the ready-made rules

Free on the Beta plan · within seconds of confirmation

Examples

What a USDT alert looks like

Each alert is one event from the token contract, with the amount and the transaction. The amounts are examples; no USD values.

MintExample

1,000,000,000 USDT

Tether minted 1,000,000,000 USDT

Ethereum · USDTIssue

BurnExample

300,000,000 USDT

Tether burned 300,000,000 USDT

Ethereum · USDTRedeem

FreezeExample

0x3C44…93BC

0x3C44…93BC was blacklisted by Tether (USDT frozen)

Ethereum · USDTAddedBlackList

DestroyedExample

1,250,000 USDT

0x3C44…93BC

Tether destroyed 1,250,000 frozen USDT of 0x3C44…93BC

Ethereum · USDTDestroyedBlackFunds

UnfreezeExample

0x90F7…b906

0x90F7…b906 removed from the USDT blacklist

Ethereum · USDTRemovedBlackList

Example alerts. Set up the rule and the real ones reach your chat within seconds of confirmation.

What changes on-chain

Every event for this token

The contract from the issuer's own docs, and the events the ready-made rules catch. Ordinary transfers never reach you.

Tether (USDT)

0xdac17f958d2ee523a2206206994597c13d831ec7

Tether mints USDTIssue
New USDT added to Tether's treasury address on Ethereum.
Tether burns USDTRedeem
USDT removed from Tether's treasury, usually after a redemption.
Tether freezes an addressAddedBlackList
The address goes on the USDT blacklist and can no longer send its USDT.
Tether unfreezes an addressRemovedBlackList
The address comes off the blacklist and can move its USDT again.
Tether destroys frozen USDTDestroyedBlackFunds
The frozen balance is wiped and the USDT supply falls by that amount.

Why set it up

Why people watch it

Supply, one event at a time

Every new USDT and every USDT burned, as Tether does it, instead of waiting for daily charts.

Freezes as they happen

See an address go on the USDT blacklist when the block is confirmed, not hours later in the news.

Straight from the contract

Each alert is Tether's own on-chain event, with the transaction. No estimates, no opinions.

Explained

What is USDT on Ethereum?

USDT is Tether's dollar stablecoin. On Ethereum it is one contract, TetherToken (0xdac17f958d2ee523a2206206994597c13d831ec7), and only Tether can mint new USDT, burn it or freeze an address.

USDT also lives on other chains, such as Tron and Solana, each with its own contract, supply and blacklist. This page and its rules cover the Ethereum contract only.

Explained

How Tether mints and burns USDT

When Tether mints (the contract calls it an issue), the new USDT is added to Tether's own treasury address and the contract logs an Issue event with the amount. The tokens then leave the treasury in ordinary transfers to the customers and exchanges that sent dollars.

Redeemed USDT goes back to the treasury in an ordinary transfer first. Tether then burns it from the treasury (the contract calls it a redeem), which lowers the supply and logs a Redeem event with the amount.

Explained

How Tether freezes USDT

The USDT contract keeps a list of addresses Tether has frozen. Tether adds an address with an AddedBlackList event; from then on the address cannot send its USDT. Tether can later remove it (RemovedBlackList) or destroy the frozen balance outright (DestroyedBlackFunds), which wipes the tokens and lowers the supply.

Tether freezes addresses linked to hacks, scams and sanctions, often at the request of law enforcement. The contract records that a freeze happened, never why.

Ready-made rules

Set it up in one click

Open a rule: the contract, the events and the conditions are filled in. Change the minimum if you like, click Create, and the alerts reach your chat.

Ready-made ruleUSDT mints and burnsTether issuing new USDT or redeeming it.

Ready-made ruleUSDT blacklist changesAddresses Tether freezes or unfreezes on USDT, and frozen funds it destroys.

Ready-made rules

Every rule for this contract

Each one opens the add form on this contract with the events and conditions filled in. Sign in, pick your chat and click Create.

EverythingEverything on a contractEvery event a contract emits — full visibility for power users.

TemplateWhale transfersOnly the big transfers of a popular token, above a size threshold.

TemplateToken transfersEvery transfer for an ERC-20 token you care about.

TemplateToken approvalsApprovals granted on a token — unlimited allowances are flagged as a drain risk.

TemplateMints and burnsNew supply minted and supply burned on an ERC-20, such as stablecoin issuance.

TemplateStablecoin blacklistAddresses frozen or unfrozen by the issuer of a stablecoin such as USDC or USDT.

Pick one event

One event, nothing else

The form opens on this contract with that one event picked. Add a condition on its arguments if you like.

Pick one method

Calls to one method

An alert each time someone calls this method on the contract, with its arguments.

How it works

How the alert works

01
Open a ready-made rule: the contract, the events and the conditions are filled in.
02
Sign in, pick the chat the alerts go to and click Create.
03
Within seconds of confirmation, each matching event reaches you, with a link to the transaction.

FAQ

Frequently asked questions

Where does the data come from?

Every alert comes from the token contract's own event on Ethereum mainnet, read within seconds of confirmation, with a link to the transaction on Etherscan. The contract is TetherToken, 0xdac17f958d2ee523a2206206994597c13d831ec7.

Can I get alerts only for large USDT mints?

Yes. Set the same rule for yourself from the template on this page and add a condition, such as a minimum amount or one address. The free Beta plan covers one contract and needs no card. Amounts are in token units, for example 100,000,000 USDT.

Can I get an alert if one specific address is frozen?

Yes. Set the same rule for yourself from the template on this page and add a condition, such as a minimum amount or one address. The free Beta plan covers one contract and needs no card. Add a condition on the address and you get one alert if it is ever frozen or unfrozen.

Does it cover USDT on Tron and other chains?

Ethereum mainnet only. The token also lives on other chains, and each chain has its own contract, supply and blacklist. The rules here cover the Ethereum contract.